Spider silk of fantastical, superhero strength is finally speeding toward commercial reality — at least a synthetic version of it is. The material, which is five times stronger than steel, could be used in products from bulletproof vests to medical implants, according to an article in Chemical & Engineering News (C&EN).

Alex Scott, a senior editor at C&EN, notes that spider silk's impressive strength has been studied for years, and scientists have been trying to make a synthetic version of the super-strong protein in the lab.

Engineers at North Carolina State University invented the metallic bubble wrap as a way to improve the durability of packaging materials for electronics and suitcases, along with other products such as car doors, airplane wings and helmets, where it can also be used in the products themselves. The metal is not meant to replace traditional plastic bubble wrap, but to be used when circumstances call for sturdier cushioning.